<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
  <input
          type="checkbox" name="xxx"
          th:each="season : ${seasonList}"
          th:text="${season.showForUserValue}"
          th:value="${season.submitValue}"
          th:checked="${seasonListForRedisplay.contains(season)}"
  />
</body>
</html>